Improvement in tuck-creasing attachment for sewing-machines



nCtrdteti tutea Letters PatentN 106,151, elated August 9, 1870.

'IMPROVEMET IN TUCK-CREASING- ATTACHMENT FOR SBWING-IVIACHINES.

The Schedule referred to in these lLetters Patent and making part of thesame I, Hanny C. GooDmoH, ofthe city ot' Chicago, in the collnty ofOookand State of Illinois, have invented certain new and useful Improvementsin Tuek-Marli ers for Sewing-lvlaehiues, of which the following is ainll description, reference being had to the aceompanying drawing makingpart ofthis specification, in

Figure 1 is an elevation.

Figure 2, a top view.

Figure 3, a section.

Figures 4, 5, (i, details.

The drawings are full size. i My invention relates to that class ot'tuck-markers in which the mark or crease in the cloth is made by meansof a wheel rotating over a blade, the clot-h passing between the wheeland blade.

'lhe principal object of my invention is'to construct a tuck-marker, sothat that part of the cloth which is in line with thevcreasing-wheel andblade will, while being creased, be carried forward by the act-ion ofthe tnekgmarkeras fast as that part of the cloth which is being stitchedis` carried forward by the feed ofthe Y sewing-machine. I accomplishthis by means of two wheels arranged upon the same shaft, and revolvingtherewith, one operating as a creasing-wheel, the

' other as a driving-wheel to operate the creasing-wheel,

both wheels so arranged as to be in constant contact with the clothwhile in use, the driving-wheel located iu the line ofuthe stitchingoutside of aud in front of the presserfoot, and being so serrated ortoothed that the `moving-cloth catching upon the points or teeth on theperiphery of the wheel will rotate the same, while the creasingwheelisso serrated that its teeth catch in the cloth, carrying it forward.

Auotherobjeetof my invention is to enable the operator'to adjust atpleasure the pressure of either or of both'of the wheels upon the cloth;thisI accomplish bythe mea-ns hereinafter described.

A represents a. metallic plate, which may be made of sheet metal,v inwhich is a slot, s, through which a thumb-screw passes for the purposeof securing the devieeto thesewing-machine, in the usual manner.

y D is a movable gauge, arranged and used in thc ordinary manuel'. i

B B'iar'e two standards, permanently fastened to A, thelatter bcing;r alittle longer than the former. 'lhey areplaced alittle distance apart,may be made ot a single piece ot' sheet metal, bent iu proper shape, auopeningbeing provided at 'o through which to pass the bar f.

The" piec`e`or frame C d b is made from a single piece ,of metabub beingarms extending from C, in which arms are bearings, iu which the shaft Drevolves.

E is a serrated wheel loeatedupon the shaft d; this wheel and shaft areso constructed that the wheel cau be moved laterally upon the shaft, butcannot rotate thereon, mit, only with it. This is accomplished bywell-knowimethods, one of which is shown in fig. 3. This wheel must beso made as not to be moved too easily on the shaft, and so that it willremain where placed.

F is another serrated wheel, also havinga groove in its face extendingaround the entire wheel. A This wheel is permanently secured to theshaft ll near the outer end thereof. Beneath the groove in F isa.projection or blade, e, attached to A, which blade, with the' groovedwheel F, makes the mark in the cloth.

Y, The teeth upon these two wheels are near each other, presenting sharppoints to the cloth, and the teeth in these two wheels do not projecttherefrom in the same direction. angle and iu such direction that thecloth, as it is drawn along under it by the feed of the machine, willcatch against the points of the teeth and cause the wheel and shaft torotate, 4(see liff. 3,) while the teeth upon F project therefrom in sucha direction that, as it revolves, the points of the teeth Catch in thecloth, forcing it forward. The wheel E may be grooved as well asserrated, as shown in figs. l and 2.

It' necessary, the wheel F maybe made a little larger than E, thusmaking allowance for friction, and rendering it certain that thecloth inthe line 0t`- the marking-wheel will move as rapidly as that partiu the`line of stitching.

U is pivoted at 4its inner end to the bare, which is also pivotedbetween the two standards i, giving the desired iiexibility to theworking parts, and enabling nie readily to adjust the pressure ofeither, or of both wheels, upon theI cloth, which I-do as follows:

In U is a long longitudinal slot, h. A. long bar,f, passes between thetwo standards, and is there snpported in any suitable manner, as shown.It extends through the metal forming the standard, and requires no othersupport at that point. The inner end is bent in an L-forni, the extremoend passing into the slot- If.

'iu (I.

A lever, h, is pivoted to 15'; the lower arm of the lever iscani-shaped, and cornes in Contact with the The teeth upon E are atsuoli an end nearer one wheel than the other, the pressure on thesercral wheels will be unequal, but can still be regulated as before.

A cloth-smoother, g, may be used with this device. A

In operation, the device is attached to the sewingmachine so that thewheel E will be in front of the feed, and in the line of the stitching,the parts being adjusted with reference to the width of the tuck to bemade.

The cloth is passed under both wheels. As the cloth is drawn along bythe feed of the sewing-inaehine, if the pressure ot' the wheels upon thecloth has been properly regulated7 the cloth will catch upon the teethin the wheeh, causing it to revolve, also revolving the shaft d andcreasing-wheel F; at the same time the teeth in F will catch in thecloth beneath it, and carry it along between the blade and groove in thewheel, making the mark i'or the next tuck, the cloth in the line ofstitching, and that in l line with the creasing-wheel, being carriedforward sin multaneously and with equal speed, and thus the cloth willhe kept smooth, and a mark will be made by the creasing-wheel, parallelto the stitching.

' The end of the bar f, in the slot k, should usually be midway betweenthe two wheels. v

The bar f is not entirely rigid, but yields enough to permit seams inthe cloth to pass beneath the wheels.

The frame C is somewhat seliladjusting, being pivoted to c, and thelatter to the standards, as before described.

Having thus fully described my invention,

ters Patent, is as follows:

1. 'lhe combination of the plate A, wheels E F, shaft d, and frame C ab, constructed substantially as and for the purposes specified.

2. The movable wheel E, located outside of the presser-foot oi' asewing-machine, in combination with the shaft d and creasing-wheel Is,substantially as and for the purposes specified..

3. The combination ot' the hinged bar c, frame C, wheels E and F, andyielding bar f, with the plate 'A and guide D consti-noted and operatingsubstantially as specified.

HARRY C. GOODRIOH,

Witnesses E. A. Wns'r, i O. W. BOND.

What Il claim as new, and desire to secure by Let-

